Walking past said gallery a small poster caught my eye, which I will excerpt below;

"Ownership

"Five anonymous European artists in a large contemporary exhibition, multiple locations ouside four of the most prestigious art galleries in central London

"Exploring the themes of institutional importance/ reliance upon the 'label' and its effects on the viewerwhen amputated from its usual habitation

 untitledartists@hotmail.com

Sounds interesting, doesnt it ? Except I couldnt see any exhibition whatever, apart from what looked like a few fragments left over. Concerned , I went into the official gallery to enquire further.
The information desk looked blank: hadnt heard about it, it simply wouldnt be permitted on their gallery property without permission and [get this !] how would I like it if someone organised an arts exhibition in my little home without permission ? How twee ! I pointed out that Tate was a public building, supposedly dedicated to the spirit of modern art, not property rights ! Useless place